sundownz

We will announce the dates and pricing shortly. Right now we are JUST getting the prototypes in.

Here it is! Super small little amp Without mounting feet included the new amps are sized as follows : SAZ-1500D: 8.30” x 2.32” x 16.53” SAX-125.4: 8.30” x 2.32” x 11.02” Factory tested power as follows @ 1 % : 138x4 at 4 203x4 at 2 438x2 at 4 I'll be pretty busy for at least a few days but I will get my testing as soon as possible. On to the photos with the 1500D v.3 and the 100.4D revision : * Hard to tell but there are small holes in the board on the right for the fan on the opposite side of the board to breathe. * 1500D v.3 and the 125.4 together * WOW * 99% of the crossovers... only lacking the 12/24dB slop switch. Fixed at 24 dB now.

I updated the first post today with new information.

I do not have the ETA 100% nailed down yet as the tooling all has to be made, tested, approved, etc, etc but we should start seeing these in action before the end of the year!

I have the go-ahead to show the frame renderings by my patent attorney as I've been assigned a patent application number... we will enforce the patents to the fullest extent of the law as well. In any event here we go : Click to see a larger view. A few people may have been expecting some crazy weird cosmetics -- but this is Sundown Audio where performance is first. The functional layout of the landings, clearances, bolt pattern, mounting lip, terminal location, etc were developed first then the legs and base were designed with the strength required to hold the motor weights we plan to utilize (and then some). Cosmetics fell in place based on the function required -- just like the SA-8 v.2 frame (also patent pending for reference). So what we have here are the strongest frames I know of, period (about 3x the material of a 12-spoke frame)... with the highest clearances I am aware of on a one-piece frame as well. Not to mention wide enough spider landings to take advantage of it. This was a Facebook exclusive from Sunday until now so to answer a question that was already asked -- no, there is no spider plateau venting. We will utilize a vent spacer like the SA-8 v.2, the SA-10/12/15, and the Z v.3 18 do now. These spacers work much better with my air-flow designs than a wide open design (yes, I did test that here at my shop with my own test methods). Also... these will be used on lines BIGGER than the SA line. They are simply too costly to use on the SA line. So the upcoming X line, the Z line, and the NS line. An 18" version is in the works but will be handled separately next year. Until then I have a bigger spider adapter ring I am tooling for the 6-spoke 18" frame (same size as my tooled 15" basket) as well as a beefier surround to support it.

Yes... it's been a VERY drawn out process. I went ahead and finished the SA-8 v.2 in the mean-time -- but it is still on our plate to finish this.

It's in the works on the back burner. I'll be sure to add any new updates when available.

Little bit of testing in Derrick's Explorer -- using my Extech power clamp meter (which always reads low vs. separate meters method) : 26 Hz 46.6v 43.7A 2036 Watts 1.06 ohm 27Hz 48.2v 40.4a 1974 watts 1.19 ohms The super low frequency is a bit different than normal testing as well -- I'll get it in one of my other setups and do testing in the more typical range (more similar to my "official" amp clamp thread) when I get a moment but Derrick was up so we threw it in his Explorer! We kept it down below any point of audible distortion for testing. Time does not permit details testing and dialing in today... just a quick test and we are very pleased thusfar. Watching my power clamp we saw 1500-1600 watt continuously on music as well. So far I haven't had to fan turn on in any of my testing nor has the case been even lukewarm to the touch. Also some 16v testing will be done as time permits. We usually squeeze a bit more out of our units between prototype and production as well. * With big brother NS-1 * Derricks low tuned box featuring some OA-12s * XS Power batteries on tap

Indeed ! I was trying to get the 1500D v.3 smaller both ways as well but it simply was not going to be possible with the parts I wanted to use AND the fan. But we were able to pull it off on the other models

Got it in today. I will be doing some testing over the next few days -- here is a comparison to the 1500D v.2 model -- the new v.3 is longer to fit all of the new parts and the fan but is narrower. The newer 2500D v.2 and 3500D v.2 will actually shrink in width AND length compared to the old units for reference. * The fan blows through the board to expel air out the sides of the amp. Will do a heck of a job in terms of cooling :thumbsup:

The v.2 handles more power mechanically and theremally than the v.1

All of our authorized online dealers are very high quality with good service.

We are looking @ second week of May to receive these.

I've had great experience with their caps with extremely limited failures over the last 5 years as we've used alot of them (10s of thousands of caps) -- I've had problems with several other brands, though, which we will not use again for any reason. Suppose it could depend on the application and if the cap is used beyond it's specification but we have had VERY good results with CapXon.

GUTS of SAX-125.4 model -- lots of stuff packed in there... we did opt for some surface mount parts in this guy to pack it in as small of a case as we could. Traditionally we shy away from them but I think they will work well in a multi-channel unit and afford us the small size our customers want. Crossover is equal to the SAX-100.4d except we had to lose the 12/24dB selection on the crossover -- it is fixed on 24 dB now.

I am still mulling that over -- since the bar can rotate we could put the logo and model # just on the bar.

Yes.

What size inputs & where the logos? If the 125.4(125.2) a four channel now, is the specs on the 100.4 going up? Are all the new amps gone be smaller/shorter?? 4 awg inputs -- we usually don't get logos on prototypes for the sake of getting them quickly. The 100.4 is no longer in the line -- this amp, 125.4, replaces it. When we do the new two-channel it will be 150.2 All of our new SAZ / SAX amps will be smaller, yes.

As I mentioned in the OP we are using the tiffany RCA plugs on production -- it was a bit quicker to get our prototypes with these style and we have no time to waste.

SAX-125.4 Hmmm... this sure does look small, huh ? Tested Power Factory Spec : 138x4 at 4 203x4 at 2 438x2 at 4

So... I have information on the SAX-125.4 now -- who finds that interesting ?!

It is not

Pricing is roughly identical to the old models on mono amps.

Yes they will sound great on 3k

I am not sure how much volume that allows you but if you have between 8 and 12 cubes look into two Z v.3 18s -- best price to displacement ratio. Shouldn't be much trouble doing a 150 with a pair.